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n-杂环卡本的光生成在光致环开环转移聚合中的应用
JoVE Journal
Chimica
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JoVE Journal Chimica
Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization
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n-杂环卡本的光生成在光致环开环转移聚合中的应用

DOI:
10.3791/58539-v

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12:19 min

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November 29, 2018

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, , , , , , ,
1ICGM, Université de Montpellier, CNRS, ENSCM, 2Institut de Science des Matériaux de Mulhouse (IS2M UMR 7361 CNRS),Université de Haute-Alsace, 3Université de Strasbourg, 4Laboratoire de Chimie des Polymères Organiques (LCPO UMR 5629 ENSCBP),Université de Bordeaux

Capitoli

  • 00:04Titolo
  • 01:12Synthesis of 1,3-Dimesitylimidazolium Tetraphenylborate (IMesH+BPh4‐)
  • 02:49Photogeneration of 1,3-Dimesitylimidazol-2-ylidene (IMes) and Formation of the 1,3-Dimesitylimidazolium-2-dithiocarboxylate Adduct (IMes-CS2)
  • 04:13Spectrophotometric Titration of Photogenerated IMes
  • 06:12Photoinduced Ring-Opening Metathesis Polymerization (PhotoROMP) of Norbornene (NB) in Miniemulsion
  • 09:29Results: Characterization of N-Heterocyclic Carbene (NHC) Products
  • 11:35Conclusion

Summary

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我们描述了一种通过对 2-异丙基硫氧基硫代氧基/四苯基苯二酰氧基盐体系的紫外辐射对 n-杂环炭出 (nhc) 进行光化的方案。提出了光致 nhc 的表征方法, 并阐明了光化学机理。环开物转移光聚合协议在溶液和微乳液中说明了这种2组分 nhc 光耗能系统的潜力。

Tags

N-Heterocyclic CarbenesNHCPhotolatent NHCPhotoinduced Ring-Opening Metathesis PolymerizationImidazolium SaltsPhotochemistrySpectrophotometric TitrationPhenol RedNorborneneMiniemulsionRuthenium Precatalyst

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